5981778 has 24 divisors (see below), whose sum is σ = 14139216. Its totient is φ = 1812600.

The previous prime is 5981749. The next prime is 5981797. The reversal of 5981778 is 8771895.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14908 + ... + 15303.

It is an arithmetic number, because the mean of its divisors is an integer number (589134).

Almost surely, 2^5981778 is an apocalyptic number.

5981778 is an abundant number, since it is smaller than the sum of its proper divisors (8157438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5981778 is a wasteful number, since it uses less digits than its factorization.

5981778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30230 (or 30227 counting only the distinct ones).

The product of its digits is 141120, while the sum is 45.

The square root of 5981778 is about 2445.7673642438. The cubic root of 5981778 is about 181.5279195718.

It can be divided in two parts, 59817 and 78, that added together give a palindrome (59895).

The spelling of 5981778 in words is "five million, nine hundred eighty-one thousand, seven hundred seventy-eight".